package com.snail.sell.controller;


import com.snail.sell.Exception.SellException;
import com.snail.sell.enums.ResultEnums;
import lombok.extern.slf4j.Slf4j;
import me.chanjar.weixin.common.api.WxConsts;
import me.chanjar.weixin.common.exception.WxErrorException;
import me.chanjar.weixin.mp.api.WxMpService;
import me.chanjar.weixin.mp.api.impl.WxMpServiceImpl;
import me.chanjar.weixin.mp.bean.result.WxMpOAuth2AccessToken;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.ServletRequestBindingException;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;

import java.net.URLEncoder;

/**
 * @Author: XJL
 * @Description:
 * @Date: Create in 19:40 2017/12/11
 * @Modified By:
 **/
@Controller
@RequestMapping("/wechat")
@Slf4j
public class WechatController {

    @Autowired
    private WxMpService wxMpService;

    @GetMapping("/authorize")
    public String authorize(@RequestParam("returnUrl") String returnUrl){

        //配置
        //调用方法
        System.out.println("+++++++++++++++++++++++++++++++++++++");
        String url="http://xujiliang1.55555.io/sell/wechat/userInfo";
       String redirectUrl =  wxMpService.oauth2buildAuthorizationUrl(url, WxConsts.OAUTH2_SCOPE_BASE, URLEncoder.encode(returnUrl));
        return "redirect:"+redirectUrl;

    }

    @GetMapping("/userInfo")
    public String userInfo(@RequestParam("code")String code,
                         @RequestParam("state")String returnUrl){

        WxMpOAuth2AccessToken wxMpOAuth2AccessToken = new WxMpOAuth2AccessToken();
        try {
            wxMpOAuth2AccessToken = wxMpService.oauth2getAccessToken(code);
        }catch (WxErrorException e){
            log.error("【微信网页授权异常！】");
            throw new SellException(ResultEnums.WECHAT_MP_ERROR.getCode(),e.getError().getErrorMsg());
        }
        String openId = wxMpOAuth2AccessToken.getOpenId();
        System.out.println("______________"+openId);
        return "redirect:" + returnUrl +"?openid="+openId;
    }
}
